32GB DDR4-2666 ECC RDIMM
A 32GB 2Rx4 ECC registered DDR4-2666 module (PC4-21300) at 1.2V, for Xeon Scalable 1st Gen (Skylake-SP) at 2666. It is the mainstream capacity for a balanced channel population, and the part most second-hand server builds end up standardising on.
Fully Tested & Documented · Hong Kong Warehouse Stock · Worldwide Shipping 3–7 Days · 1-Year Warranty
Hardware Gallery
The 32GB DDR4-2666 RDIMM, Up Close
DDR4 RDIMM — DRAM packages and edge connector
Representative photo of the RDIMM module family - the actual label on the unit you receive is read and photographed against your order before dispatch. Photo: ITEagle Europe - Sebastiaan Broekhoven, CC BY-SA 4.0, via Wikimedia Commons (https://creativecommons.org/licenses/by-sa/4.0).
DDR4 RDIMM — edge connector
Representative photo of the RDIMM module family - the actual label on the unit you receive is read and photographed against your order before dispatch. Photo: Dsimic, CC BY-SA 4.0, via Wikimedia Commons (https://creativecommons.org/licenses/by-sa/4.0).
32GB
capacity per module, 2Rx4 organisation
2666
MT/s (PC4-21300) at 1.2V
RDIMM
registered, the mainstream server DIMM
Key Specifications
| Component | Specification |
|---|---|
| Form Factor | RDIMM, 288-pin, DDR4 |
| Capacity | 32GB |
| Organisation | 2Rx4 (dual rank, x4 DRAMs) |
| Speed | DDR4-2666, PC4-21300 |
| Voltage | 1.2V (JEDEC DDR4 standard) |
| Error Correction | ECC registered, with on-DIMM register and PLL |
| Intel Platforms | Xeon Scalable 1st Gen (Skylake-SP) at 2666; 2nd Gen boards run it at 2666 |
| AMD Platforms | EPYC 7001 (Naples) at 2666 |
| DRAM | Samsung / SK hynix / Micron depending on lot - confirmed at quote |
| Condition | New, or decommissioned pulls - stated line by line before you order |
| Warranty | 1 year, in writing, confirmed with the order |
A 32GB 2Rx4 module is a DDR4 registered design: the register buffers the address and command lines between the memory controller and the DRAM. The organisation matters as much as the capacity: a 2Rx4 module and a different 2Rx part of the same capacity are not interchangeable on every board. Capacity per channel is what decides the build: twelve 32GB modules is 384GB on a twelve-channel platform, eight is 256GB on an eight-channel one. Full server memory range. Module photographs on this page: ITEagle Europe - Sebastiaan Broekhoven, CC BY-SA 4.0.
Transparent Pricing
2026 Reference Pricing by Configuration
We do not publish a fixed price for DDR4 RDIMM or LRDIMM. DRAM contract pricing has been repricing through 2026 at a rate that makes a printed figure stale within days, so every module is quoted against the tray or pull stock we can confirm for your quantity, at the rate in force that day. If you need a number to budget against, tell us the quantity and the platform and we will put a firm figure in writing with the date it holds until.
Single Modules
On Request
Individually checked modules, new or pull condition stated before you commit. Quoted against live stock.
Matched Kits (8 or 12 DIMMs)
On Request
Full channel or socket population drawn from one lot, so a dual-socket build is not assembled from mixed batches. Tell us your platform and channel count.
Volume Orders (100+ modules)
On Request
Batch quantities consolidated from our Hong Kong warehouse, with freight and packing quoted alongside the memory.
No price is published on this page by choice rather than omission: DDR4 pricing has been moving too fast in 2026 for a static figure to be honest. Send quantity, platform and whether you need RDIMM or LRDIMM and we will quote against live stock. Related reading: server memory capacity planning and buying server CPU under memory inflation.
Origin
Hong Kong Warehouse
Free port — full export documentation
Transit
3–7 Days Air Freight
Tracked, insured, worldwide
Warranty
1-Year Warranty
Diagnostic report in every box
Quality Process
What We Check Before a 32GB DDR4-2666 RDIMM Ships
Part Number and Label Read
The label is read and photographed, and the part number, capacity, organisation and speed rating are checked against the specification on your order. DRAM vendors ship several parts per capacity that differ only in the suffix.
Organisation Confirmed
2Rx4 and 2Rx8 are verified rather than assumed: the same capacity and speed in a different organisation is not interchangeable in every platform, and some boards specify one or the other.
Register and SPD Check
The register clock driver and the SPD are checked for damage, and the SPD read is compared against the label before the module goes into stock.
Gold Finger and Pin Condition
The edge connector is inspected under magnification for wear, scratching and bent pins, since a pull module can be electrically sound and still refuse to seat cleanly.
Serial Logging
Serial numbers are recorded per module before packing, so a short or mixed shipment can be traced to the units dispatched rather than to a carton number.
Report in the Box
Every unit ships with its per-machine diagnostic report and warranty. Full process: inspection guide.
Frequently Asked Questions
How much does a 32GB DDR4-2666 ECC RDIMM cost?
We quote rather than publish. DDR4 pricing through 2026 has moved too fast for a static figure to stay honest, so we confirm condition and stock for your quantity and put a firm figure in writing with the date it holds until.
What does 2Rx4 mean, and does it matter?
dual rank, x4 DRAMs - the "R" is ranks per module and the "x" number is the DRAM package width. It matters because the platform sets a rank limit per channel: a four-rank module loads the channel like two two-rank modules, so the processor datasheet decides how many of these you can fit per channel, and mixing organisations in one channel can force a lower speed.
Will DDR4-2666 modules run at full speed in a faster platform?
They run at 2666. Memory support settles at the speed of the slowest module in the channel, so a DDR4-2666 part pins that channel to 2666 even on a board rated to 2933. If you want the higher figure, populate the whole channel at the higher speed; mixing speeds gives you the lower one.
Can I mix these with the DDR4 modules I already have?
Within the same type, normally yes at JEDEC speed, provided the organisation and rank are close enough for the platform to train. Mixing a 2Rx4 module with a 2Rx8 in one channel can force a lower speed or fail outright on some boards. Tell us the platform and the installed population and we will check it before shipping.
Are these modules new or pulled?
Both are available and the condition is stated line by line before you order. New modules carry the manufacturer warranty process; pulls are tested and carry our own one year written warranty.
Get a 32GB DDR4-2666 RDIMM Quote
Tell us the platform, the number of channels and the population you are aiming for. We check the rank limit and quote against confirmed stock with the date the figure holds until.
Request a Quote